Finding the Fourth Proportional to 1,782.72, 2,460.18 and 996.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,782.72 : 2,460.18 = 996.78 : x
2. Step 2: Convert to fraction form
   1,782.72/2,460.18 = 996.78/x
3. Step 3: Cross multiply
   1,782.72x = 2,460.18 × 996.78
4. Step 4: Simplify right side
   1,782.72x = 2,452,258.22
5. Step 5: Solve for x
   x = 2,452,258.22/1,782.72
6. Step 6: Final answer
   x = 1,375.57